a look at the republican party with hugh hewitt, corry field and peggy graham. at 5:30 p.m., rebecca, author of the mother of all questions and further reports from the feminist revolution. live coverage continues sunday with a discussion on the environment. at 4:00 p.m. gary young talks about his book "another day in the death of america". at 7:00 p.m., david horowitz on his book "big agenda: present transplant to save america". watch the festival of books live today starting at 1:30 p.m. eastern and sunday at 1:30 p.m. eastern on c-span twos book tv. >> the name of the book is the chicken trail, following workers, migrants and corporations across the americas. the author, university of arizona professor of sociology, kathleen's wharton. doctor sportsman, what is the chicken trail? >> well it's a way to describe a circular movements of chickens to mexico and immigrants to the us in the briefest form? host: in a longer form, how does that occur? guest: the id is because of transformation in the poultry industry there were increases in labor conflict and because